Well yeah. In a FPTP system those third-party candidates hurt the major-party candidates closest to their viewpoints, whereas now their voters end up having a s

Well yeah. In a FPTP system those third-party candidates hurt the major-party candidates closest to their viewpoints, whereas now their voters end up having a say once it becomes clear that their favored candidate is not viable. Same with Republicans in liberal districts; a choice between two Democrats is just what the voter profile of those districts leads to, and at least this way the minority party gets to influence the final winner.